▎ 摘　　要

A one-pot hydrothermal synthesis approach was developed to prepare FeSO4 center dot(H2O)-graphene oxide (GO) nanosheets. Au nanoparticles were immobilized onto this support, giving Au/Fe2O3-GO nanocomposites. Fe2O3-GO supports showed high surface area and thermal stability. The Au/Fe2O3-GO and synthesized Au/Fe3O4 nanocomposites exhibited high catalytic activity and recyclability for the reduction of 4-nitrophenol.